Warner Bros. has now responded to these allegations of copyright infringement.

In a statement to GamesIndustry.biz, the publisher stated that Bethesda's claims are baseless and that Behavior Interactive has clarified to it that no code from Fallout Shelter was reused in Westworld. It stated that:

[...] The assertions by Bethesda Softworks that Warner's Westworld mobile game improperly used source code from Bethesda's Fallout Shelter are as surprising as they are unsubstantiated.

Warner Bros. has been assured by the game developer, Behaviour Interactive, that Bethesda's allegations are untrue and that none of Bethesda's code was used in the Westworld game. Moreover, contrary to Bethesda's baseless accusation, Warner Bros. at no time 'induced' Behaviour to use the Fallout Shelter code in Westworld.